declare
    object_exists exception;
    pragma exception_init (object_exists , -00955);
begin
  execute immediate
	'CREATE TABLE "TRAYECTOS_EXPRESOS" 
   (	"TRAYECTOSEXPRESOS_ID" NUMBER(15,0) NOT NULL PRIMARY KEY, 
	"DESCTRAYECTO" VARCHAR2(60 BYTE), 
	"VALORTRAYECTO" NUMBER(15,2), 
	"CANTVEHICULOS" NUMBER(3,0), 
	"ACTIVO" NUMBER(1,0), 
	"FECMODIF" DATE, 
	"USUARIO_ID" NUMBER(7,0), 
	"SOLICITUDEXPRESO_ID" NUMBER(15,0), 
	"NUMPLACA" VARCHAR2(8 BYTE), 
	"DOCFLUEC" BLOB
   )';
 exception when object_exists then null;
end;
/
declare
    object_exists exception;
    pragma exception_init (object_exists , -00955);
begin
  execute immediate
	'CREATE SEQUENCE "TRAYECTOS_EXPRESO_SEQ" MINVALUE 10000 MAXVALUE 9999999999999999999999999999 INCREMENT BY 1 START WITH 10000;';
 exception when object_exists then null;
end;

begin
  execute immediate
	'ALTER TABLE "TRAYECTOS_EXPRESOS"
	ADD FOREIGN KEY ("SOLICITUDEXPRESO_ID")
	REFERENCES "SOLICITUD_EXPRESO" ("SOLICITUDEXPRESO_ID") ENABLE;';
 exception when object_exists then null;
end;